Performance and availability of a marine generator-solid oxide fuel cell-gas turbine hybrid system in a very large ethane carrier

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This study investigates the proper configuration of an electric propulsion system for a very large ethane carrier. The system consists of a dual-fuel diesel electric generator and a solid oxide fuel cell-gas turbine hybrid system to replace the mechanical propulsion system based on a marine diesel engine. When the ship navigates the open sea, the dual-fuel diesel electric generator and hybrid system run in parallel at a power rating of 16 MW. However, the hybrid system only operates during the berthing state for ship hoteling. The system efficiency, energy efficiency design index, and availability are considered to identify the optimal system configuration. When the dual-fuel diesel electric generator produces 10 MW, the hybrid system generates 6 MW. Because the electric propulsion system complies with international environmental regulations, it may be broadly acceptable for gas carriers in terms of eco-efficiency. The system achieves high availability by using fault tree analysis and minimal cut sets.
Publisher
ELSEVIER SCIENCE BV
Issue Date
2018-09
Language
English
Article Type
Article
Keywords

RELIABILITY; CYCLE; OPTIMIZATION; SIMULATION; DESIGN

Citation

JOURNAL OF POWER SOURCES, v.399, pp.199 - 206

ISSN
0378-7753
DOI
10.1016/j.jpowsour.2018.07.103
URI
http://hdl.handle.net/10203/246151
Appears in Collection
ME-Journal Papers(저널논문)
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